Tire-tube-testing device



March 26, 1929; P, MIL R 1,707,130

TIRE TUBE TESTING DEVICE Original Filed June 1924 P. Milne)" W ATTORNEY WITNESS:

Patented Mar. 1929.

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IPLESAINTT MILNER, F CROWLEY, LOUISIANA.

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Application filed June 7, 1924, Serial at. 718,628. Renewed August 20, 1928.

This invention relates to a'holder for pneumatic tubes, the general object of the invention being to provide means for holding the tubes while they are being tested for holes and punctures, the device acting to limit the expansion of the tube by the compressed air in the same.

This invention also I consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the'accompanying drawings and specifically pointed out in the appended claims.

, In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the device.

Figure 2 is a transverse sectional view showing a tube in the same.

Figure 3 is a detail side view.

As is well known, it is extremely diflicult vention to provlde means for eonfimng the tube and preventing undue expansion of the same when air is introduced into the same so that suflicient air can be introduced into the 3 tube to cause some of the air to escape through the puncture so that the puncture can be detected.

In carrying out my invention I provide a ring-shaped member A for containing the tube, which is shown at-B in Figure 2, under compression. This member is formed with perforations 1 and it is preferably composed of two sections 2 and 350 that the tube can be easily placed in the same or removed therefrom. The section 3 is provided with the angle flanges 4 for receiving the heads 5 formed on the edges of the section 2. Cam latch members 6 are connected by the links 7 to ears 8 on the sections 2 and these latch to discover small punctures in the pneumatic members are adapted to engage under the 'can be inflated with an amount of air which.

is suflicient to cause some of the air to escape through the puncture and thus enable the puncture to be detected. The .device will limit the expansion of the tube and thus'p'revent it from bursting under great pressure. While I have shown the device as formed of perforated material it will of course be mesh or similar material.

It isthought from the foregoing descripunderstood that it can be formed out of wire I tion that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the. several parts, provided that such changes fall with in the scope of the appended claims.

What I claim is 1. A device of the class described includ ing separable ring members each arcuate shaped in'cross section and formed with perforations, an angular flange formed on each edge of one of said members, a head on each edge of the other member adapted torest upon each flange, and clamping members carried by the last mentioned member for engagement beneath each flange on the first mentioned member to clamp said members together. U

2. A device of the class described including separable ring members each arcuate shaped in cross section and formed with perforations, an angular flange formed on each edge of one of said members, a bead formed on each edge of the other member'adapted 'to rest upon each flange, spaced ears carried by the last mentioned member, links pivoted to said ears, and cam latch members carried by said links and adapted to engage beneath each angular flange to clamp said ring members together.

In testimony whereof I aflix my signature.

PLESANT manna 

